How much energy is required to heat 5 liters of water from 20°C to 100°C?
Q: You start out by driving 72 miles south in 3 hours and 20 minutes, and then you stop and park for a…
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Q: The direction of the magnetic field due to moving proton and the force direction is given out of the…
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Q: How much force is needed to accelerate a 50 kg skier at 3 m/sec?
A: Write the given values with suitable variables. m=50 kga=3 m/s2 Here, m denotes the mass and a…
Q: A car is moving at a speed of 50 km/h. Its speed expresses in m/s is 25 m/s 13.8 m/s 20 m/s 30…
A: Speed of car (u) = 50 kmhr Using conversion factor : 1 km = 1000 m 1 hr = 3600 seconds
Q: A meteor crashes into the atmosphere at 50 km/s (Think about that, that’s really fast!) Let’s say…
A: The equation of motion is given by, Δy=ut+12at2 Here, Δy is the displacement, u is the initial…
Q: What is acceleration? Acceleration is a change in over time.
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Q: If a force of 10 N accelerates an object 2 m/s?, the object's mass is kg
A: Given Force on an object = 10 N acceleration of an object = 2 m/s2 We have to calculate the mass of…
Q: How far away was a lightning strike if thunder is heard 6.17 seconds after seeing the flash? Assume…
A: Given: The time is taken to hear the thunder is 6.17 s. The speed of the sound is 350 m/s.
Q: average velocity
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Q: A car has a final velocity of 10 m/s and an acceleration of 2 m/s2. If it has been moving for 8…
A: Given: The final velocity of the car is 10 ms-1. The acceleration of the car is 2 ms-2. In the…
Q: km in 8 hours. If the speed is increased by 250km/h, then the time taken by the plane to cover 9000…
A: We know that the relation between the speed and distance is given as Speed = Distance time if the…
Q: Decades describe as and 60MPH describe as 1. distance 2. time 3. speed 4. velocity 5.…
A: The Decades is a period of 10 years. Miles per hour is the unit of speed
Q: Rank these speed measurements in increasing order from smallest (1) to greatest (5): 54.9 mi/h…
A: There are various speeds with different units and we have to rank these speed measurements in…
Q: The values below in boxes should be written in scientific notation: 8002 x 107 -10 1000 5 J.…
A: (i) 8002×10-10 m ⇒8002×10-10 m=8.002×103×10-10 m=8.002×10-7 m
Q: Brent travels 100 miles in two hours on the way to his destination the return trip took him 1.5…
A: Given data: Distance traveled to reach destination (d1) = 100 miles Time taken (t1) = 2 hours…
Q: A bird flies 320 m south in 45s. What is the bird's speed O 0.14 m/s south 7.1 m/s 0.14 m/s O 7.1…
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Q: A cyclist, starting from rest, travels in a straight line for 10 minutes. 1. During the first 2.0…
A: Given the uniform acceleration is 0.067 m.s-2 for the first two minutes. Therefore the velocity for…
Q: How much force does it take to bring a 1,200 N car from rest to a velocity of 40 m/s in 6 seconds?
A: Force is the product of mass of the body and the acceleration to keep it in motion. F=ma It is…
Q: How much (in Newtons) does a 57.6 kg person weigh?
A: Given Data: The mass of the person is, m = 57.6 kg. The weight of a person is dependent on the…
Q: A piece of lead has a mass of 58 kg was placed on a rocket to the moon where the gravitational pull…
A: m=58 kggE=6gmgE=9.8 N/kg
Q: What is the weight of an object (on earth) that has a mass of 45 kg?
A: Given data The mass of the person is an object as m = 45 kg.
Q: Ignoring air resistance, how long will it take a rock that falls off a 50 meter cliff to hit the…
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Q: If the applied force on an object is 30 N and accelerates it at 3 m/s2, what is the mass of the…
A: According to newton's second law force on the object is equal to multiplication of mass and…
Q: 17. Which scenarios would have the same frame of reference? Select all that apply. a motorcycle…
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Q: A vehicle has reduced its speed from 15 m / s to 7 m / s within a distance of 90 meters. ( explain…
A: Given Initial speed is 15 m/s Final speed is 7 m/s Distance covered in between is S. Time taken is.…
Q: A stone is thrown downward with a speed of 16 m/s from a height of 17 m. (acceleration due to…
A: It is given that,
Q: An ordinary flea has a mass of 210 mg. How many newtons does it weigh?
A: Given data: The mass is m=210 mg.
Q: A car begins from rest and reaches a speed of 20 m/s in 5 seconds. The acceleration of the car is…
A: Given data: Initial velocity (u) = 0 m/s Final velocity (v) = 20 m/s Time (t) = 5 s Required:…
Q: How much time did it take to hit the ground?
A: Given data: The initial velocity of stone is: u = 0 ( dropped) The final velocity with which stone…
Q: A bicycle moves from rest to 7.0 m/s in 3.6 seconds. What was the acceleratioll! Your Answer: Answer…
A: Given, initial velocity of bicycle = 0 m/sfinal velocity of bicycle = 7.0 m/stime = 3.6sWe know…
Q: Give a conclusion about accelerated motion
A: There are two types of motion. One is constant velocity motion and the other is accelerating motion.…
Q: A stone is thrown downward with a speed of 12 m/s from a height of 14 m. (acceleration due to…
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Q: What's the difference between velocity and acceleration?
A: Answer: Velocity Velocity is defined as the rate of change of displacement. It is a vector quantity…
Q: Mariana puts the pedal to the metal and increases her speed as follows. 0 miles per second at 0…
A: Acceleration of the car is a=vf-vitf-ti 0 miles per second at 0 seconds and 5 miles per second at 1…
Q: Superman needs to save Lois from the clutches of Lex Luthor. After flying for 7 seconds, he is 2515…
A: We are given the distance from Lois after a given time. We are again given new distance from her in…
Q: An airplane flying 500mph flew over a monument at the same time that a second arplane also flew over…
A: Given: The speed of the first airplane: v1=500 mph The speed of the second airplane: v2=600 mph The…
Q: Rank these speed measurements in increasing order from smallest (1) to greatest (5): 55.1 mi/h…
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Q: How much force does it take to bring a 1,325 N car from rest to a velocity of 33 m/s in 11 seconds?
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Q: A stegosaurus walks with a speed of 7 Km/hr (2 m/s). How far did the stegosaurus get after 7…
A: Speed , S= 7 km/hr = 2 m/s Time , T = 7 seconds To find = distance
Q: you slam on your automobile brakes, sliding 40 feet with locked brakes. how much further would slide…
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Q: If a cheetah can reach his top speed of 93 km/h in just 3 seconds from rest, what is its…
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Q: On a highway trip, joe drives the first 25 miles at 55 mph, and the next 15 miles at 70 mph. What is…
A: Given, on a highway trip, joe drives the first d1=25 miles at v1= 55 mph, and the next d2=15 miles…
Q: What is your speed if you travel 4 miles in 2 hours? 8 mph O 2 mph O 1/2 mph O 4 mph
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